Question

Match the following :

	List I		List II
A	Leydig cells	I	Carry sperms from seminiferous tubules to vasa efferentia
B	Sertoli cells	II	Nurish sperms
C	Rete testis	III	Secretion of testosterone
D	Corpus luteum	IV	Secretion of progresterone

The correct match is

• A. A- II, B- III, C- V, D- IV
• B. A- III, B- II, C- I, D- IV
• C. A- III, B- II, C- V, D- IV
• D. A- II, B- III, C- I, D- V

Answer 1

The correct option is B A- III, B- II, C- I, D- IV

a) The male sex hormone testosterone is produced by Leydig cells. These cells are located in the seminiferous tubule.

b) FSH stimulates the Sertoli cells of the seminiferous tubules, provides a local testosterone supply for the developing spermatogonia.

c) The rete testis is a complex anastomosis of seminiferous tubules located in the mediastinum testis. Their drainage is via several efferent ductules which open to form the head of the epididymis. Each testis is attached to an epididymis, which connects rete testis to vas efferentia.

d) The corpus luteum secretes estrogen and progesterone. The latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. If the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs. Thus, the correct answer is option B.